Ask question

Ask question

All categories

Murljashka [212]

3 years ago

8

here plzzzzzz HELP just plzz you can do one of them the one with the comment you just have to make a intro and the second one yo

u have to use both just PLZ DON'T ANSWER WITH "No" JUST FOR THE POINTS OR IF YOU DON'T KNOW THEN DON'T ANSWER READ THIS BEFORE YOU START.

1 answer:

Zina [86]3 years ago

4 0

Answer:

i gotchu brother

Explanation:

You might be interested in

A sample of pure lithium nitrate contains 7. 99% lithium by mass. What is the % lithium by mass in a sample of pure lithium nitr

Shalnov [3]

Considering the definition of percentage by mass, the sample of pure lithium nitrate contains 7.99% lithium by mass.

<h3>Definition of percentage by mass</h3>

The percentage by mass expresses the concentration and indicates the amount of mass of solute present in 100 grams of solution.

In other words, the percentage by mass of a component of the solution is defined as the ratio of the mass of the solute to the mass of the solution, expressed as a percentage.

The percentage by mass is calculated as the mass of the solute divided by the mass of the solution, the result of which is multiplied by 100 to give a percentage. This is:

$percentage by mass=\frac{mass of solute}{mass of solution}x100$

<h3>This case</h3>

Because percent by mass indicates the ratio of solute to solution based on mass, if the sample has twice the mass of the first sample, the ratio remains constant.

So the percentage by mass is the same.

That is, the sample of pure lithium nitrate contains 7.99% lithium by mass.

.

Learn more about percent by mass:

brainly.com/question/18646836?referrer=searchResults

3 0

3 years ago

HURRY THE F^CK UP AND ANSWER.

Evgesh-ka [11]

Answer: These apply as goals of the United Nations:

<em>(▢ establishing human rights )</em>

<em>▢ preventing war </em>

<em>(▢ promoting social progress )</em>

<em>▢ encouraging international cooperation </em>

The UN does not seek to take over aggressive nations in a military way, nor does it set up an international military tribunal. It will provide peacekeeping forces to regions of conflict.

The UN Charter, signed in 1945, lists the purposes of the organization in Chapter I, Article 1. Here's the official wording as found in the Charter:

The Purposes of the United Nations are:

To maintain international peace and security, and to that end: to take effective collective measures for the prevention and removal of threats to the peace, and for the suppression of acts of aggression or other breaches of the peace, and to bring about by peaceful means, and in conformity with the principles of justice and international law, adjustment or settlement of international disputes or situations which might lead to a breach of the peace;

To develop friendly relations among nations based on respect for the principle of equal rights and self-determination of peoples, and to take other appropriate measures to strengthen universal peace;

To achieve international co-operation in solving international problems of an economic, social, cultural, or humanitarian character, and in promoting and encouraging respect for human rights and for fundamental freedoms for all without distinction as to race, sex, language, or religion; and

To be a centre for harmonizing the actions of nations in the attainment of these common ends.

8 0

3 years ago

Read 2 more answers

How many electrons pass through a 20-ohms resistor in 10 min if there is a potential drop of 30 volts across it?

tangare [24]

The number of electrons passes through 20 ohms resistor in 10 minutes is 5.625e+21.

<h3>What is a resistor?</h3>

In an electronic circuit, a resistor is an electrical component that limits or regulates the flow of electrical current.

Given, the resistance is 20 ohms.

The potential difference is 30 volts

Time is 10 minute

By the formula of current

$\rm I = \dfrac{30}{20} = 1.5 \;C/s$

The charge flowing through the resistor is 1.5 C/s

1 electron charge is 1.6e+19

Now, the number of electrons passing through a 20 ohms resistor is

$\dfrac{1.5}{1.6e+ ^2^1} = 0.9375e+^1^9$

In 10 minutes

$0.9375e+^1^9 \times 60 \times 10 = 5.625e+^2^1$

Thus, the number of electrons passes through 20 ohms resistor in 10 minutes is 5.625e+21.

Learn more about a resistor

brainly.com/question/24297401

#SPJ1

5 0

2 years ago

Du lich quốc tế là gì

Lina20 [59]

Answer:

Du lịch quốc tế là những chuyến du lịch mà nơi cư trú của khách du lịch và nơi đến du lịch thuộc hai quốc gia khác nhau. ... + Du lịch ra nước ngoài (du lịch quốc tế gửi khách - Outbound Tourism): Là chuyến đi của một cư dân trong một nước đến một nước khác và tiêu tiền kiếm được ở đất nước của mình tại nước đó.

Explanation:

5 0

3 years ago

A magnet is moved in and out of a coil of wire connected to a high-resistance voltmeter. If the number of coils doubles, the ind

lord [1]

Answer: is A

Explanation:

8 0

3 years ago